the recovery door

THE WAY BACK INHELD · NEVER LOCKED FROM THE OUTSIDE

The door that opens when everything else is down.
It stays ready, and it must never be locked from outside.

the chain

Three links, each one redundant

held means tested

Not designed. Proven.

The snapshot happens every day. The reload gets verified. The fallback has been used for real, once, when it mattered. This is the one door the house checks even when nothing is wrong — because a door that is only tested in an emergency is a door that fails in one.

Back to the front door